/* ============================================================
   SBS 刷步系统 — Premium Utilitarian Minimalism
   暖白单色系 / 编辑风 / 1px 细边框 / 无渐变无重影 / 无 emoji
   ============================================================ */
:root{
    --bg:#f7f6f3;            /* warm bone */
    --card:#ffffff;
    --text:#111111;          /* off-black */
    --t2:#787774;            /* muted gray */
    --b:#eaeaea;             /* ultra-light border */
    --i-bg:#fbfbfa;
    --th-bg:#fafaf8;
    --h-bg:#f4f3f0;
    --nav-bg:rgba(247,246,243,0.92);
    --accent:#111111;
    --green-bg:#edf3ec; --green-tx:#346538;
    --red-bg:#fdebec;   --red-tx:#9f2f2d;
    --yellow-bg:#fbf3db; --yellow-tx:#956400;
    --blue-bg:#e1f3fe;  --blue-tx:#1f6c9f;
}
.dark{
    --bg:#121212; --card:#1a1a1a; --text:#eaeaea; --t2:#8a8a86;
    --b:#2a2a2a; --i-bg:#202020; --th-bg:#1e1e1e; --h-bg:#222;
    --nav-bg:rgba(18,18,18,0.92);
    --green-bg:#1c2a1c; --green-tx:#8fd18f;
    --red-bg:#2c1e1e;   --red-tx:#ff9d97;
    --yellow-bg:#2a2418; --yellow-tx:#e0c07a;
    --blue-bg:#17252e;  --blue-tx:#8ecdf5;
}
*{margin:0;padding:0;box-sizing:border-box}
body{
    font-family:'SF Pro Display','Helvetica Neue','PingFang SC','Microsoft YaHei',sans-serif;
    background:var(--bg);color:var(--text);min-height:100vh;line-height:1.6;
    transition:background .2s,color .2s;opacity:0;animation:pi .3s forwards;
}
@keyframes pi{to{opacity:1}}
::-webkit-scrollbar{width:6px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:var(--b);border-radius:3px}
::-webkit-scrollbar-thumb:hover{background:var(--t2)}

/* ---------- 导航 ---------- */
.nav{background:var(--nav-bg);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--b);padding:0 20px;height:60px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100}
.nav-l{display:flex;align-items:center;gap:10px}
.nav-icon{width:30px;height:30px;background:var(--accent);border-radius:4px;display:flex;align-items:center;justify-content:center;color:#fff;font-weight:700;font-size:13px;letter-spacing:.02em}
.nav h1{font-size:17px;font-weight:600;letter-spacing:-0.01em}
.nav-r{display:flex;align-items:center;gap:4px}
.nav-u{font-size:12px;color:var(--t2);padding:3px 10px;background:var(--i-bg);border:1px solid var(--b);border-radius:9999px}
.nav-link{padding:6px 10px;border-radius:4px;font-size:13px;color:var(--text);text-decoration:none;font-weight:500;transition:all .15s;border:1px solid transparent}
.nav-link:hover{background:var(--h-bg);border-color:var(--b)}
.nav-link.d{color:var(--red-tx)}
.nav-link.d:hover{background:var(--red-bg);border-color:transparent}
.dm-btn{background:none;border:1px solid var(--b);font-size:12px;cursor:pointer;padding:4px 10px;border-radius:4px;color:var(--t2);transition:all .2s;font-family:inherit;letter-spacing:.05em}
.dm-btn:hover{background:var(--h-bg);color:var(--text)}

/* ---------- 主容器 ---------- */
.main{max-width:1050px;margin:0 auto;padding:20px;animation:fi .4s}
@keyframes fi{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}

/* ---------- 公告/提示 ---------- */
.ann{padding:12px 16px;border-radius:6px;background:var(--blue-bg);color:var(--blue-tx);font-size:13px;margin-bottom:14px;border:1px solid var(--b);animation:fi .3s}
.flash{padding:12px 16px;border-radius:6px;margin-bottom:14px;font-size:13px;display:flex;justify-content:space-between;align-items:center;animation:fi .25s;border:1px solid var(--b)}
.flash-s{background:var(--green-bg);color:var(--green-tx);border-color:transparent}
.flash-e{background:var(--red-bg);color:var(--red-tx);border-color:transparent}
.flash-c{cursor:pointer;font-size:16px;opacity:.4}.flash-c:hover{opacity:1}
.msg{padding:12px 16px;border-radius:6px;margin-bottom:14px;font-size:13px;border:1px solid var(--b);animation:fi .25s}
.msg-s{background:var(--green-bg);color:var(--green-tx);border-color:transparent}
.msg-e{background:var(--red-bg);color:var(--red-tx);border-color:transparent}

/* ---------- 卡片 ---------- */
.card{background:var(--card);border:1px solid var(--b);border-radius:8px;padding:20px;margin-bottom:16px;transition:all .25s;animation:fi .3s}
.card:hover{box-shadow:0 2px 8px rgba(0,0,0,0.04)}
.card h2{font-size:15px;font-weight:600;margin-bottom:14px;letter-spacing:-0.01em}
.card.full{grid-column:1/-1}
.ch{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;flex-wrap:wrap;gap:8px}
.ch h2{font-size:16px;font-weight:600;letter-spacing:-0.01em;margin:0}
.ch-r{display:flex;gap:6px}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;gap:4px;padding:8px 16px;border:none;border-radius:4px;font-size:13px;font-weight:500;cursor:pointer;white-space:nowrap;transition:all .15s;text-decoration:none;background:var(--accent);color:#fff;font-family:inherit}
.btn:active{transform:scale(0.98)}
.btn:hover{background:#333}
.btn-p{background:var(--accent);color:#fff}
.btn-p:hover{background:#333}
.btn-sm{padding:5px 10px;font-size:12px}
.btn-s{background:var(--green-tx);color:#fff}
.btn-s:hover{background:#2c5530}
.btn-d{background:var(--red-tx);color:#fff}
.btn-d:hover{background:#8c2826}
.btn-w{background:var(--yellow-tx);color:#fff}
.btn-w:hover{background:#7d5300}
.btn-g{background:transparent;color:var(--t2);border:1px solid var(--b)}
.btn-g:hover{background:var(--h-bg);color:var(--text)}

/* ---------- 表格 ---------- */
table{width:100%;border-collapse:collapse}
th{padding:9px 12px;text-align:left;font-size:11px;font-weight:600;color:var(--t2);text-transform:uppercase;letter-spacing:.05em;border-bottom:1px solid var(--b);background:var(--th-bg);white-space:nowrap}
td{padding:10px 12px;font-size:13px;border-bottom:1px solid var(--b)}
tr:last-child td{border-bottom:none}
tbody tr{transition:all .15s;animation:ri .3s both}
@keyframes ri{from{opacity:0;transform:translateX(-8px)}to{opacity:1;transform:translateX(0)}}
tbody tr:hover{background:var(--h-bg)}
.ac{display:flex;gap:4px;flex-wrap:wrap}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:5px;padding:3px 10px;border-radius:9999px;font-size:11px;font-weight:600;letter-spacing:.05em;text-transform:uppercase}
.badge-dot{width:6px;height:6px;border-radius:50%}
.badge-p{background:var(--yellow-bg);color:var(--yellow-tx)}.badge-p .badge-dot{background:var(--yellow-tx);animation:pu 1.5s ease-in-out infinite}
@keyframes pu{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(1.3)}}
.badge-c{background:var(--green-bg);color:var(--green-tx)}.badge-c .badge-dot{background:var(--green-tx)}
.badge-f{background:var(--red-bg);color:var(--red-tx)}.badge-f .badge-dot{background:var(--red-tx)}
.badge-a{background:var(--green-bg);color:var(--green-tx)}
.badge-d{background:var(--red-bg);color:var(--red-tx)}
.badge-m{background:var(--blue-bg);color:var(--blue-tx)}

/* ---------- 空状态 ---------- */
.emp{text-align:center;color:var(--t2);padding:36px 20px;font-size:14px}
.emp-icon{font-size:30px;margin-bottom:8px;opacity:.35;animation:ei 2s ease-in-out infinite;filter:grayscale(1)}
@keyframes ei{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}

/* ---------- 工具条/筛选 ---------- */
.tbar{display:flex;gap:8px;align-items:center;margin-bottom:12px;flex-wrap:wrap}
.tbar label{display:inline-flex;align-items:center;gap:4px;font-size:12px;color:var(--t2)}
.sb{display:flex;gap:8px;margin-bottom:14px}
.sb input{flex:1}

/* ---------- 弹窗 ---------- */
.mo{display:none;position:fixed;inset:0;background:rgba(17,17,17,0.3);align-items:center;justify-content:center;z-index:999;padding:20px}
.mo.s{display:flex}
.m{background:var(--card);border:1px solid var(--b);border-radius:10px;padding:28px;width:100%;max-width:420px;max-height:90vh;overflow-y:auto;animation:mi .2s}
@keyframes mi{from{opacity:0;transform:scale(.96) translateY(10px)}to{opacity:1;transform:scale(1) translateY(0)}}
.mh{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px}
.mh h2{font-size:17px;font-weight:600}
.mc{width:30px;height:30px;border:1px solid var(--b);background:var(--i-bg);border-radius:4px;cursor:pointer;font-size:16px;color:var(--t2);display:flex;align-items:center;justify-content:center;transition:all .15s;font-family:inherit}
.mc:hover{background:var(--h-bg);color:var(--text)}

/* ---------- 表单 ---------- */
.fg{margin-bottom:14px}
.fg label{display:block;font-size:13px;font-weight:500;color:var(--text);margin-bottom:5px}
.fg input,.fg textarea,.fg select{width:100%;padding:10px 12px;border:1px solid var(--b);border-radius:4px;font-size:14px;outline:none;transition:all .15s;background:var(--i-bg);color:var(--text);font-family:inherit}
.fg input:focus,.fg textarea:focus,.fg select:focus{border-color:var(--text);background:var(--card)}
.fg input:disabled{background:var(--th-bg);color:var(--t2)}
.fg textarea{resize:vertical;min-height:80px}
.fg select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--t2) 50%),linear-gradient(135deg,var(--t2) 50%,transparent 50%);background-position:calc(100% - 18px) 50%,calc(100% - 13px) 50%;background-size:5px 5px;background-repeat:no-repeat}
.fh{font-size:11px;color:var(--t2);margin-top:4px}
.fr{display:flex;gap:10px;flex-wrap:wrap;align-items:flex-end}
.fr .fg{flex:1;min-width:130px}

/* ---------- 登录/注册页 ---------- */
.logo{width:44px;height:44px;background:var(--accent);border-radius:4px;display:flex;align-items:center;justify-content:center;margin:0 auto 18px;font-size:18px;color:#fff;font-weight:700}
.form-group{margin-bottom:16px}
label{display:block;font-size:13px;font-weight:500;color:var(--text);margin-bottom:6px}
input{width:100%;padding:11px 14px;border:1px solid var(--b);border-radius:4px;font-size:15px;outline:none;transition:all 0.2s;background:var(--i-bg);color:var(--text);font-family:inherit}
input:focus{border-color:var(--text);background:var(--card)}
input::placeholder{color:#b0afab}
button.btn{width:auto}
form .btn{width:100%;padding:12px;border:none;border-radius:4px;font-size:15px;font-weight:500;color:#fff;background:var(--accent);cursor:pointer;transition:all 0.2s;margin-top:4px}
form .btn:hover{background:#333}
form .btn:active{transform:scale(0.98)}
.error{background:var(--red-bg);color:var(--red-tx);font-size:13px;text-align:center;padding:10px 14px;border-radius:6px;margin-bottom:16px;border:1px solid transparent}
.success{background:var(--green-bg);color:var(--green-tx);font-size:14px;text-align:center;padding:12px;border-radius:6px;margin-bottom:14px;border:1px solid transparent}
.links{text-align:center;margin-top:22px;font-size:14px;color:var(--t2)}
.links a{color:var(--text);text-decoration:none;font-weight:500;border-bottom:1px solid var(--b);padding-bottom:1px}
.links a:hover{border-color:var(--text)}

/* ---------- 管理后台 ---------- */
.tabs{display:flex;gap:4px;margin-bottom:16px;background:var(--card);border:1px solid var(--b);border-radius:6px;padding:4px;flex-wrap:wrap;animation:fi .3s}
.tab{flex:1;padding:8px;text-align:center;border-radius:4px;font-size:12px;font-weight:500;cursor:pointer;color:var(--t2);text-decoration:none;transition:all .2s;min-width:60px}
.tab:hover{background:var(--h-bg);color:var(--text)}
.tab.a{background:var(--accent);color:#fff}
.tab.a:hover{background:#333}
.st{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin-bottom:16px}
.sc{background:var(--card);border:1px solid var(--b);border-radius:6px;padding:16px;text-align:center;transition:all .25s}
.sc:hover{box-shadow:0 2px 8px rgba(0,0,0,0.04);transform:translateY(-2px)}
.sc .n{font-size:26px;font-weight:700;color:var(--text);letter-spacing:-0.02em;transition:all .2s}
.sc:hover .n{transform:scale(1.06)}
.sc .l{font-size:12px;color:var(--t2);margin-top:2px}
.pg{display:flex;justify-content:center;gap:4px;margin-top:14px}
.pg a,.pg span{padding:5px 12px;border-radius:4px;font-size:13px;text-decoration:none;color:var(--t2);border:1px solid var(--b)}
.pg a:hover{border-color:var(--text);color:var(--text)}
.pg .c{background:var(--accent);color:#fff;border-color:var(--accent)}

/* ---------- 图表 ---------- */
.ct{display:flex;align-items:flex-end;gap:8px;height:120px;padding:10px 0;border-bottom:1px solid var(--b)}
.ct-i{flex:1;display:flex;flex-direction:column;align-items:center;gap:4px}
.ct-b{width:100%;border-radius:2px 2px 0 0;min-height:4px;background:var(--accent);opacity:.85;transition:height .3s}
.ct-l{font-size:11px;color:var(--t2)}

/* ---------- API 状态 ---------- */
.api-s{display:inline-flex;align-items:center;gap:4px;font-size:12px}
.api-d{width:6px;height:6px;border-radius:50%;display:inline-block}
.api-g{background:var(--green-tx);animation:ps 2s ease-in-out infinite}
.api-r{background:var(--red-tx)}
.api-gy{background:#c7c7cc}
@keyframes ps{0%,100%{opacity:1}50%{opacity:.4}}

/* ---------- 表格横滑容器 ---------- */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;scrollbar-width:none;margin:0 -20px;padding:0 20px}
.table-wrap::-webkit-scrollbar{display:none}
.table-wrap table{min-width:620px}

/* ---------- 手机卡片（默认隐藏） ---------- */
.m-cards{display:none;flex-direction:column;gap:10px}
.m-card{background:var(--card);border:1px solid var(--b);border-radius:12px;padding:14px 14px 12px}
.m-card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;gap:8px}
.m-card-user{font-weight:600;font-size:14px;word-break:break-all}
.m-card-meta{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:12px}
.m-card-k{font-size:11px;color:var(--t2);letter-spacing:.03em;text-transform:uppercase}
.m-card-v{font-size:13px;margin-top:2px;word-break:break-all}
.m-card-foot{display:flex;gap:6px;flex-wrap:wrap}
.m-card-foot .btn{flex:1;justify-content:center;min-height:36px}
.m-card-time{font-size:11px;color:var(--t2);margin-top:8px}

/* ---------- 响应式 ---------- */
@media(max-width:768px){.main{grid-template-columns:1fr}}
@media(max-width:640px){
    .nav{padding:0 14px;height:52px;gap:6px}
    .nav h1{font-size:15px}
    .nav-r{gap:4px;flex-wrap:nowrap}
    .nav-u{max-width:84px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
    .nav-link{padding:6px 8px;font-size:12px}
    .main{padding:12px;padding-bottom:calc(16px + env(safe-area-inset-bottom))}
    .card{padding:14px;border-radius:12px}
    .ch{flex-direction:column;align-items:stretch}
    .ch-r{justify-content:stretch}
    .ch-r .btn{flex:1;justify-content:center}
    th,td{padding:8px 6px;font-size:12px}
    .tabs{font-size:11px;gap:2px}
    .st{grid-template-columns:1fr 1fr}
    .fr{flex-direction:column}
    .fg{min-width:100%}
    /* 手机：隐藏大表格，显示卡片 */
    .table-wrap{display:none}
    .m-cards{display:flex}
    /* 输入框 16px 防 iOS 缩放 */
    .fg input,.fg select,.fg textarea,input{font-size:16px}
    .fg input,.fg select{padding:12px 12px;border-radius:10px;min-height:44px}
    .btn{padding:10px 14px;border-radius:10px;min-height:40px}
    .btn-sm{padding:8px 12px;min-height:36px}
    /* 弹窗改底部抽屉 */
    .mo{align-items:flex-end;padding:0}
    .m{border-radius:16px 16px 0 0;max-width:100%;width:100%;max-height:92vh;padding:20px 16px calc(20px + env(safe-area-inset-bottom));margin:0}
    .mh{margin-bottom:16px}
}
@media(max-width:380px){
    .nav{padding:0 10px}
    .nav-icon{width:26px;height:26px;font-size:11px}
    .m-card-meta{grid-template-columns:1fr}
}